forEach loop breaking when no namespaces are set on init

[DannyvanHolten]

🐛 Bug Report

forEach loop breaking when no namespaces are set on init

To Reproduce

A codesandbox example or similar
or at least steps to reproduce the behavior:

import i18n from "i18next";
import Backend from "i18next-http-backend";
import { initReactI18next } from "react-i18next";

i18n
  .use(Backend)
  .use(initReactI18next)
  .init({
     ns: [],
   })

Console error:

react_devtools_backend.js:4045 TypeError: Cannot read properties of undefined (reading 'forEach')
    at i18next.js:880
    at Array.forEach (<anonymous>)
    at Translator.resolve (i18next.js:865)
    at Translator.translate (i18next.js:744)
    at I18n.t (i18next.js:2544)
    .... etc.

Expected behavior

I'm trying to upgrade from i18next 20 to i18next 21. In our app, we do not load any namespaces by default and have no default translations file (all is being imported through the use of namespaces through component hooks).

Because my array of ns is empty it breaks initialization. And it requires me to specify a namespace that is loaded by default . Which I don't want to.

I believe this is because of how the new defaultNs is being loaded. It seems to not check if the ns property actually contains values or is an empty array.

Your Environment

• runtime version: node 14
• i18next version: i18next 21.1.6 (upgrading from 20.3.1)
• os: Mac
• any other relevant information: Running together with i18next-backend and i18next-react

[adrai]

Can you please provide a reproducible example? I'm not able to reproduce it.

[adrai]

I found it...
Can you try with v21.6.1?

[DannyvanHolten]

It is indeed fixed. WOW, this was so fast. Thanx for that!

[adrai]

If you like this module don’t forget to star this repo. Make a tweet, share the word or have a look at our https://locize.com to support the devs of this project.

There are many ways to help this project 🙏

[DannyvanHolten]

P.S: Did you leave in a rogue console.log?

My console is printing my namespaces.

[adrai]

yep, sorry... v21.6.2